A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6105-01-447-2984
NSN 5945-01-008-1465
NSN 6135-00-050-7189
NSN 6150-00-402-2392
NSN 6135-01-443-5279
NSN 4140-01-420-6508
NSN 4140-00-189-0235
NSN 6150-01-293-4311
NSN 5960-01-497-4572
NSN 5990-01-463-2279
NSN 5999-00-724-5552
NSN 5855-01-356-5284